320 



REPRODUCTION 



toxylem and protophloem present. Compare transverse section 

 with that of the normal branches. Note amount and char- 



FlG. 153. Cross section of portion of aerial stem of Lysimachia terrestris. A, 

 large intercellular spaces. B, xylem. C, bast. E, cambium. D, glandular ducts. 



acter of storage material. Note specific gravity by placing in 

 water. Imbed in moist sand and germinate. What is the fate 



Fig. 154. Cross section of portion of bulbil of Lysimachia terrestris. A, intercel-, 

 lular spaces. B, protoxylem. E, procambium. F, sheath. D, glandular ducts. 



